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©2013 UpToDate ® Print Email Anencephaly at 32 postmenstrual weeks of gestation A coronal view of the face. the eyes are prominent and above them no cranial vault or brain tissue is seen (A). A longitudinal view of the neck region and upper thoracic vertebrae showing the disrupted bony structures as well as some disorganized neutral tissue (B). In a transverse view the typical U-shaped vertebrae with tissue protruding is evident. This is consistent with an open upper spina bifida which is commonly seen with anencephaly. Courtesy of Ana Monteagudo, MD.